Embroidering-machine.



G. HU'BNER.

lEMBROIDERING MACHINE.

APPLICATION FILED OCT. I4, |910.

Patented Apr. 27, 1915,

5 SHEETS-SHEET l- THE NORRIS PETERS CCLy PHOTO-LITHO., WASHINGTON. D. c,

G. HBNER.

EMBROIDERING MACHINE.

APPLICATION FILED ocr. I4, I9I0.

Patented Apr. 27, 1915.

5 SHEETS-SHEET 2.

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@uvam/tez y/MM,

drm/nw THE NoRR/s PETERS 50,. PHOTO-LITHD.. WASHINGTON, Dv c.

G. HBNER.

EWIBRIDERING MACHiNE.

APPLICATION FILED ocT. I4. IgIo.

Patented Apr. 27, 1915.

5 SHEETS-SHEET 3.

WMM/m x THE NQRRIS PETERS Cn., PHoTo-LlrHo.. WASHINGTUN, D. t:v

G. HUBNER. ENIBROIDERING MACHINE.

APPLICATION FILED OCI. I4, 1916.

Patented Apr. 27, 1915.

5 SHEETS-SHEET 4.

1HE NQRRIS PETERS 60,. PHoD-LITHU.. WASHINGTUN. D. f

G. H'BNER.

EMBROIDERING MACHINE.

APPLICATION FILED OCT. 14. |910.

Patented Apr. 27, 1915.

5 SHEETS-SHEET 5 THE NORRIS PETERS Co., PHDTo-LITHO.. WASHINGTON. D. C

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GUSTAV HBNER, 0F PLAUEN, GERMANY, ASSIGNOR TO WILHELM REENTS, 0F BAUEN, GERMANY.

EMBROIDERINGr-MACHINE.

Specification of Letters Patent.

Patented Apr. 27, i915.

Application filed ctober 14, 1910. Serial No. 586,995.

To all whom t may concern:

Be it known that GUsTAv HisNnn, subject of the German Emperor, and residing at 2 Pfaffenfeld street, in Plauen, (Vogtland,) Kingdom of Saxony, in the German Empire, have invented certain new and useful Improvements in Embroidering-Machines, of which the following is a specification, reference being had therein to the accompanying drawings. l

This invention relates to embroidermg frames of embroidering machines and pertains more particularly to means for adjusting such frames to insure that a definite position of the embroidering frame corresponds automatically with each hole of the pattern card.

The novelty resides in the particular construction and arrangement of parts hereinafter more fully described and then pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the characters of reference thereon, form a part of this specification, and in which- Figure l is a side elevation of my improved mechanism, omitting the toothed wheel segments. Fig. la is a detail in top plan with portions removed. Fig. 1b is a similar view showing some of the same parts in different position. Fig. 2 is a detail in elevation showing the lower portion of the device. Fig. 8 is a similar view with the parts in a diderent position. Fig. 3a is an enlarged detail, partly in elevation and partly in vertical section, showing one of the contact levers and coperating parts. Fig. 3b is a top plan of the parts shown in Fig. 3a with a portion removed. Fig. 4: is an elevation of the parts shown in the upper por tion of Fig. l. Fig. 5 is a side elevation with portions in section, of a plurality of toothed segments in connection with an equal number of screw spindles. Fig. 6 is a plan view of the parts seen in Fig. 5.

Like letters of reference indicate like parts throughout the several views.

Referring to the drawings, the base b supports the side walls a which serve tosupport the operating parts soon to be described.

c is the main drive shaft carrying a crank disk cl shown in the form of a toothed wheel.

e is a pin secured eccentrically to said disk and surrounded by the eye f of the connecting rod g, the upper end of which connecting rod is pivotally connected with one arm of a lever la. which, in turn, transmits motion to the axle z' carrying a block la, said axle passing through a slot Z in the arm n suitably guided in its movement so that said arm n is given a pendulous movement which is transmitted to the frame g provided with rods o which are provided with lateral pins or the like 09 working in vertical slots 010 in the arms o which carry the toothed seg-.

ments p which are mounted for movement upon the shaft p9 for a purpose which will be described.

lt is to be understood that the number of frames g corresponds to the number of holes in the first row in the pattern card, and in order that these frames may be displaced each time to the right when the contact levers which engage with the pattern card enter the holes, I provide the following mechanism, reference being had to Figs. l, 2 and 3 wherein s is a wheel meshing with the toothed wheel d, the said wheel being mounted upon a shaft t carrying a disk u, said disk being provided with a partial eccentric groove o in which works a roller g/ carried by a slide or guide bar 'w attached to the rod Cc. This rod has pivotally connected throughout its upper end, as at m9, an arm m10 which is rigidly connected with a frame a rotatable on a pivot e, and in this frame the contact levers el cl are situated, being mounted upon an axle b supported in said frame and which contact levers are designed to contact with the pattern card c, the said contact levers normally resting loosely against the pattern card so that they may readily enter the holes thereof, and when this occurs with a portion of the contact levers, the roller y, which at this time still engages with the eccentric part of the groove o, comes into its highest position when a rod f1. pivotally mounted at h2 and which up to this time had supported itself against the stationary nose e and which rod 71. is rotatably mounted on the plate g, is drawn forward in the direction of the arrow in Fig. 3, so that the pointed end of the plate g, see Fig. 3a, grips between the rear ends of the Contact levers d and presses them upward or downward as the case may be, see Fig. 1. When the roller y again enters the eccentric groove o, the frame a assumes a sloping position, as indicated in Fig. 2, and all the contact levers al which have entered the holes of the pattern card lift by means of hook-shaped projections k, similarly shaped projections Z of the levers n rotatable about an aXism, so that the arms or levers n which engage the levers n are also raised and the lower pins o carried by said levers a contact with the `lower projections p of the frames Q so that these frames are pressed to the right, owing tothe oscillation of the levers, while those frames corriesponding to the contact levers which did not enter the holes in the pattern card remain in their inoperative position .to the left, because the contact levers are, before the tilting of the frame a', lifted so far :by the plates g that they can no longer iniluence the projections Z. Now, if by the oscillation of the toothed segments p which are connected as above described with the rods o and the frames g, the displacement of the embroidery frame is effected, the roller g/ leaves the eccentric part of the groove b and the frame a returns by gravity to its posi-- Y tion of repose, as seen in Fig. 3. The rod h at the iirst movement of the frame a', by reason of its movement upon the pin f, glides downwardly underthe slope of the nose e', as shown in Fig, lb and by means of a spring Q is pressed back into its position of repose, sliding up on the nose e to the right, pushing the plate g back into the position shown in Fig. 3, so that the Contact levers d are all set freeV and fall again against the pattern card, the forward movement of which is eected at each upward movement of the left hand end of the Aframe a by means of a pawl r and a ratchet wheel s', the latter being on the shaft 82 over a roller on which the pattern card 0 passes. At the same time all the frames g are brought back to their left hand position by the descending arms n and the steps above described are repeated.

As seen in Figsl and 4, the projections Z are rigid with the levers n so that the said parts Z and n are practically one solid piece and move together.

As seen clearly in Figs. l, 2 and .3, z" is a spring connected at one end to the pin f and at its other end to a similar pin f".

g, see Figs. l, 2 and 3, andFigs. la, lb, 3a and 3b, is a plate spring secured at one end to the frame a and serving lto press backward to its position of repose the plate g.

Spur wheels t', see Fig. 5., are carried by the screw spindles e and mesh with the geared segments p, as seen clearly in Figs. 4: and 5.

With the partsconstructed and arranged L `j substantially as described, the operation,

briefly-stated, is as follows The parts e',

f, g', Z and Q are designed to prevent the projections 7c of the levers Z which do not engage in a hole in the pattern card from lifting the levers ncorresponding to such levers CZ. On the frame a and extending the v -full width thereof is the plate g, hereinbefore referred to, and which is normally drawn to the left by the spring Z but cannot assume its dead center position because -of :the member Zz. fastened to the plate strikaway from the nose e', the spring z" pulling the plate g to the left and the latter presses with its beveled portion against all of the levers CZ that are not engaged in the holes in the pattern card, as will be understood upon reference to Fig. l, and thus lifting of the levers n which are intended to remain at rest is'prevented. In order that the levers n may be .turned upward at all, the framel a mnst assume its oblique position, as shown in Fig. 2, when if the rod 7L were connected rigidly with the plate '91", the downward motion would cause breakage Vof either the rod It or the nose e. In order to prevent this, the rod tis mounted to turn upon `a vertical V pivot h2 mounted in the vertical edge of theV frame a', as seen in Figs. '2 and 3. The rod la" on moving downward with the frame a slides off from the 'bevel'e9 ofthe nose, while moving on its pivot, and when l it reaches the lower edge'of the nose it will be turned under the latter by the flat 4spring g and thus will assume the 'position in which it is indicated in Fig. 2. When the frame a returns to its horizontal position, the rod ZL expands the spring z and slides up against the lower bevel of the nose e and the plate g being connected with said rod moves therewith and the levers d are released. This operation is repeated ad infinitum. v

After each forward motion of the pattern card by one row of holes, there occurs 'a shifting of the frames whose levers al have enteredinto such holes and there results a corresponding shifting Vof the embroidery frame- What is claimed as new iS l. In vembroidering machines, movably mounted frames, a main shaft, a driving crank connected thereto, a rod joined to said crank, Va common axle, a pattern card arms arranged on said common axle and slidable .on sa-idaXle and controlled bymeans of the pattern card, said aXle forming means whereby said arms are put into uniform iio izo

oscillatory motion and according to Vtheir Y crank, a common axle, a pattern card, arms arranged on said common axle and slidable on said axis and controlled by means of the pattern card, said axle constituting means, whereby said arms are put into uni form oscillatory motion and according to their height of position engaging and actuating said frames, toothed wheel segments attached to said frames whereby the embroidering frame is adjusted, spur wheels engaging said toothed wheel segments, screw spindles carrying said spur wheels and provided with right and left hand screw threads, and axially disposed nuts connecting said spindles.

3. In embroidering machines, movably mounted frames, a main shaft, a driving crank connected thereto, a rod joined to said crank, a common axle, arms slidable on said axle and controlled by means of the pattern card, said axle forming means whereby said arms are put into uniform oscillatory motion and according to their height of position engaging and actuating said frames, toothed wheel segments attached to the frames, whereby the embroidering frame is adjusted, spur wheels engaging said toothed wheel segments, screw spindles carrying said spur wheels and provided with right and Copies of this patent may he obtained for ve cents left hand screw threads and axially disposed nuts connecting said spindles, and pins on said arms arranged at a predetermined distance from each other.

4. In embroidering machines, movably mounted frames, a main shaft, a driving crank connected thereto, a rod joined to said crank, a common axle, a pattern card, arms slidably arranged on said common axle and controlled by means of the pattern card, said axle constituting means whereby said arms are put into uniform oscillatory motion and according to their height of position engaging and actuating said frames, toothed wheel segments attached to the frames whereby the embroidering frame is adjusted, spur wheels engaging said toothed wheel segments, screw spindles carrying said spur wheels and provided with right and left hand screw threads, axially disposed nuts connecting said spindles, pins on said arms arranged at a predetermined distance from each other, and projections on said frames engageable with said pins.

In testimony whereof I afix my signature.

GUS'IAV IIBNER. In the presence of- W. REEN'rs, ROBERT HEINRICH Ninn.

each, by addressing the Commissioner off Patents,

Washington, D. C." 

